/* ===== Design tokens ===== */
:root {
  --bg: #0b1020;
  --bg-soft: #121931;
  --surface: #161f3d;
  --surface-2: #1d2950;
  --border: #28335c;
  --fg: #e8edff;
  --muted: #9aa6cf;
  --accent: #6ea8fe;
  --accent-2: #8b7bff;
  --accent-grad: linear-gradient(135deg, #6ea8fe 0%, #8b7bff 100%);
  --success: #57d9a3;
  --warn: #ffcf6e;
  --danger: #ff7a85;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
  --shadow-sm: 0 4px 14px rgba(0,0,0,.25);
  --ring: 0 0 0 3px rgba(110,168,254,.35);
}
* { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: radial-gradient(1200px 600px at 80% -10%, rgba(139,123,255,.18), transparent 60%),
              radial-gradient(900px 500px at -10% 10%, rgba(110,168,254,.16), transparent 55%),
              var(--bg);
  color: var(--fg);
  line-height: 1.55;
  min-height: 100vh;
  overflow-x: clip;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.9rem; margin: .2rem 0 1rem; letter-spacing: -.02em; }
h2 { letter-spacing: -.01em; }
p.lead { color: var(--muted); font-size: 1.1rem; }
/* ===== Header ===== */
header.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; justify-content: space-between; align-items: center;
  gap: .75rem;
  max-width: 100%;
  padding: .9rem 1.5rem;
  padding-top: max(.9rem, env(safe-area-inset-top));
  padding-left: max(1.5rem, env(safe-area-inset-left));
  padding-right: max(1.5rem, env(safe-area-inset-right));
  background: rgba(11,16,32,.72);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-top {
  display: contents;
}
.brand { display: flex; align-items: center; gap: .55rem; font-weight: 800; color: var(--fg); font-size: 1.05rem; min-width: 0; }
.brand:hover { text-decoration: none; }
.brand .logo { width: 30px; height: 30px; border-radius: 9px; box-shadow: var(--shadow-sm); flex-shrink: 0; display: block; }
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  cursor: pointer;
  flex-shrink: 0;
}
.nav-toggle-bar {
  display: block;
  width: 18px;
  height: 2px;
  margin: 0 auto;
  background: var(--fg);
  border-radius: 2px;
  transition: transform .2s ease, opacity .2s ease;
}
.nav-top-actions {
  display: flex;
  align-items: center;
  gap: .5rem;
}
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: .15rem;
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
}
.lang-switch .lang-opt {
  color: var(--muted);
  padding: .2rem .45rem;
  border-radius: .35rem;
  text-decoration: none;
}
.lang-switch .lang-opt:hover { color: var(--fg); }
.lang-switch .lang-opt.active {
  color: var(--fg);
  background: rgba(99, 102, 241, .15);
}
header.nav nav.site-nav { display: flex; align-items: center; gap: 1.1rem; min-width: 0; }
header.nav nav.site-nav a { color: var(--muted); font-weight: 600; font-size: .95rem; }
header.nav nav.site-nav a:hover { color: var(--fg); text-decoration: none; }
.nav-item {
  color: var(--muted);
  font-weight: 600;
  font-size: .95rem;
  text-align: left;
}
.nav-item:hover { color: var(--fg); text-decoration: none; }
.nav-logout { margin: 0; min-width: 0; }
.nav-logout .nav-item { width: 100%; }
.nav-cta { white-space: nowrap; }
/* ===== Layout ===== */
main {
  max-width: 1040px;
  margin: 2.2rem auto;
  padding: 0 1.25rem;
  padding-left: max(1.25rem, env(safe-area-inset-left));
  padding-right: max(1.25rem, env(safe-area-inset-right));
}
.row { display: flex; gap: 1rem; align-items: center; }
.row.between { justify-content: space-between; }
.row.wrap { flex-wrap: wrap; }
.page-head { margin-bottom: .75rem; gap: 1.25rem; }
.page-head h1 { margin: 0 0 .35rem; }
.page-sub {
  margin: 0;
  line-height: 1.7;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .45rem .65rem;
}
.stack > * + * { margin-top: 1rem; }
.muted { color: var(--muted); }
.center { text-align: center; }
.auth-shell { max-width: 420px; margin: 2rem auto; width: 100%; }
/* ===== Cards ===== */
.card {
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg-soft) 100%);
  border: 1px solid var(--border);
  padding: 1.4rem 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.card.tight { padding: 1rem 1.15rem; }
/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  background: var(--accent-grad); color: #0b1020; font-weight: 700;
  border: none; padding: .7rem 1.25rem; border-radius: var(--radius-sm);
  cursor: pointer; transition: transform .08s ease, box-shadow .15s ease, opacity .15s;
  box-shadow: var(--shadow-sm);
}
.btn:hover { transform: translateY(-1px); text-decoration: none; box-shadow: var(--shadow); }
.btn:active { transform: translateY(0); }
.btn.ghost { background: transparent; color: var(--fg); border: 1px solid var(--border); box-shadow: none; }
.btn.ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn.sm { padding: .45rem .8rem; font-size: .85rem; }
.btn.block { width: 100%; justify-content: center; }
.link { background: none; border: none; color: var(--accent); cursor: pointer; font: inherit; padding: 0; }
.link:hover { text-decoration: underline; }
.link.danger { color: var(--danger); }
/* ===== Forms ===== */
label { display: block; font-size: .85rem; color: var(--muted); margin-bottom: .3rem; font-weight: 600; }
input:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]),
select,
textarea {
  width: 100%; padding: .65rem .8rem; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: #0e1530; color: var(--fg);
  font: inherit; transition: border-color .15s, box-shadow .15s;
  min-height: 44px;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: var(--ring); }
.field { margin-bottom: 1rem; }
.consent {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  margin: 0.75rem 0 1rem;
  font-size: 0.92rem;
  line-height: 1.45;
}
.consent input[type="checkbox"] {
  width: 1.1rem; height: 1.1rem; min-height: unset;
  margin-top: 0.2rem; flex-shrink: 0;
  accent-color: var(--accent);
  cursor: pointer;
}
label.checkbox,
label.radio,
.checks label {
  display: flex;
  align-items: flex-start;
  gap: .55rem;
  color: var(--fg);
  font-weight: 500;
  margin: 0 0 .65rem;
  line-height: 1.45;
  cursor: pointer;
}
label.checkbox input[type="checkbox"],
label.radio input[type="radio"],
.checks input[type="checkbox"],
.checks input[type="radio"] {
  width: 1.05rem;
  height: 1.05rem;
  min-height: unset;
  margin-top: .2rem;
  flex-shrink: 0;
  accent-color: var(--accent);
  cursor: pointer;
}
fieldset label.radio:last-of-type { margin-bottom: 0; }
.legal-doc { max-width: 48rem; margin: 0 auto; }
.legal-notice { font-size: 0.9rem; border-left: 3px solid var(--accent, #3b82f6); padding-left: 0.75rem; }
.grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
fieldset { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 1.1rem 1.15rem 1rem; margin: 0; }
fieldset legend { color: var(--muted); font-size: .8rem; padding: 0 .45rem; }
.checks { display: flex; gap: 1.2rem; flex-wrap: wrap; }
.checks label { display: flex; align-items: center; gap: .4rem; color: var(--fg); margin: 0; }
details.card > summary { padding: .15rem 0; list-style: none; }
details.card > summary::-webkit-details-marker { display: none; }
details.card > summary::before {
  content: "▸";
  display: inline-block;
  margin-right: .45rem;
  transition: transform .15s ease;
}
details.card[open] > summary::before { transform: rotate(90deg); }
/* ===== Badges & pills ===== */
.badge { display: inline-flex; align-items: center; gap: .4rem; background: var(--surface-2); color: var(--fg); padding: .3rem .7rem; border-radius: 999px; font-size: .8rem; border: 1px solid var(--border); }
.badge.accent { background: rgba(110,168,254,.15); border-color: rgba(110,168,254,.4); color: var(--accent); }
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.dot.ok { background: var(--success); box-shadow: 0 0 8px var(--success); }
.dot.idle { background: var(--muted); }
.dot.warn { background: var(--warn); }
.dot.danger { background: var(--danger, #e5534b); box-shadow: 0 0 8px var(--danger, #e5534b); }
.badge.danger { background: rgba(229,83,75,.12); border-color: rgba(229,83,75,.45); color: var(--danger, #e5534b); }
.badge.ok { background: rgba(46,160,67,.12); border-color: rgba(46,160,67,.4); color: var(--success); }
/* ===== Flash / alerts ===== */
.flash { display: flex; align-items: center; gap: .7rem; padding: .85rem 1.1rem; border-radius: var(--radius-sm); margin-bottom: 1.2rem; border: 1px solid; font-weight: 600; }
.flash.ok { background: rgba(87,217,163,.12); border-color: rgba(87,217,163,.4); color: var(--success); }
.flash.info { background: rgba(110,168,254,.12); border-color: rgba(110,168,254,.4); color: var(--accent); }
.flash.warn { background: rgba(255,207,110,.12); border-color: rgba(255,207,110,.4); color: var(--warn); }
.flash.err { background: rgba(255,122,133,.12); border-color: rgba(255,122,133,.4); color: var(--danger); }
.flash .flash-actions { display: inline; margin-left: .5rem; }
/* ===== Monitor cards ===== */
.monitors { display: grid; grid-template-columns: 1fr; gap: 1rem; }
.monitor { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; }
.monitor .info { min-width: 0; }
.monitor .info h3 {
  margin: 0 0 .45rem;
  font-size: 1.05rem;
  line-height: 1.45;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .4rem .55rem;
}
.monitor .info h3 .monitor-title {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  min-width: 0;
}
.monitor .info .url {
  color: var(--muted);
  font-size: .85rem;
  line-height: 1.55;
  margin-bottom: .15rem;
  overflow-wrap: anywhere;
  word-break: normal;
  overflow-wrap: break-word;
}
.monitor .meta { display: flex; gap: .55rem; flex-wrap: wrap; margin-top: .85rem; }
.monitor .actions { display: flex; gap: .5rem; align-items: center; flex-shrink: 0; flex-wrap: wrap; }
.monitor .actions form { margin: 0; }
.monitor .actions .delete-monitor-form {
  display: flex;
  align-items: stretch;
}
.monitor .actions .link.danger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .45rem .8rem;
  border: 1px solid rgba(255, 122, 133, .35);
  border-radius: var(--radius-sm);
  min-height: 2.35rem;
}
/* ===== Empty state ===== */
.empty { text-align: center; padding: 3rem 1rem; color: var(--muted); }
.empty .emoji { font-size: 2.5rem; }
/* ===== Pricing carousel ===== */
.plans-wrap { position: relative; }
/* Edge fades hint overflow */
.plans-wrap::before,
.plans-wrap::after {
  content: ''; position: absolute; top: 0; bottom: 1.6rem;
  width: 3.5rem; pointer-events: none; z-index: 2; transition: opacity .25s;
}
.plans-wrap::before { left: 0;  background: linear-gradient(to right, var(--bg), transparent); }
.plans-wrap::after  { right: 0; background: linear-gradient(to left,  var(--bg), transparent); }
.plans-wrap.at-start::before { opacity: 0; }
.plans-wrap.at-end::after    { opacity: 0; }
.plans-arrow {
  position: absolute; top: calc(50% - .8rem); transform: translateY(-50%);
  z-index: 3; width: 2.6rem; height: 2.6rem; border-radius: 50%;
  background: var(--surface-2); border: 1px solid var(--border);
  color: var(--fg); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; line-height: 1;
  box-shadow: 0 4px 18px rgba(0,0,0,.5);
  transition: background .18s, border-color .18s, color .18s, transform .18s, opacity .22s;
}
.plans-arrow:hover {
  background: var(--accent); border-color: var(--accent); color: #0b1020;
  transform: translateY(-50%) scale(1.12);
}
.plans-arrow.disabled { opacity: 0; pointer-events: none; }
.plans-arrow.prev { left: .3rem; }
.plans-arrow.next { right: .3rem; }
.plans {
  display: flex; gap: 1.1rem;
  overflow-x: auto; scroll-snap-type: x mandatory;
  scrollbar-width: none; -ms-overflow-style: none;
  scroll-behavior: smooth;
  padding: 1.2rem 0 1.4rem;
}
.plans::-webkit-scrollbar { display: none; }
.plan {
  display: flex; flex-direction: column; position: relative;
  flex: 0 0 clamp(240px, 85vw, 310px); scroll-snap-align: start;
}
/* Dot indicators */
.plans-dots {
  display: flex; justify-content: center; align-items: center;
  gap: .45rem; margin-top: .6rem;
}
.plans-dot {
  width: .42rem; height: .42rem; border-radius: 999px;
  background: var(--border); border: none; padding: 0; cursor: pointer;
  transition: background .2s, width .25s cubic-bezier(.4,0,.2,1);
}
.plans-dot.active { width: 1.4rem; background: var(--accent); }
.plan.featured { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent), var(--shadow); }
.plan .tag { position: absolute; top: -.7rem; right: 1rem; background: var(--accent-grad); color: #0b1020; font-size: .7rem; font-weight: 800; padding: .25rem .6rem; border-radius: 999px; }
.plan h2 { margin: 0; }
.plan .price { font-size: 2rem; font-weight: 800; margin: .3rem 0; letter-spacing: -.02em; }
.plan .price small { font-size: .9rem; color: var(--muted); font-weight: 600; }
.plan ul { list-style: none; padding: 0; margin: 1rem 0; flex: 1; }
.plan ul li { padding: .4rem 0; border-bottom: 1px dashed var(--border); display: flex; align-items: center; gap: .5rem; font-size: .92rem; }
.plan ul li::before { content: "✓"; color: var(--success); font-weight: 800; }
.plan ul li.no { color: var(--muted); }
.plan ul li.no::before { content: "—"; color: var(--muted); }
/* ===== Hero / landing ===== */
.hero { text-align: center; padding: 3.5rem 0 2rem; }
.hero h1 { font-size: clamp(2rem, 5vw, 3.2rem); line-height: 1.1; }
.hero .grad { background: var(--accent-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .cta { display: flex; gap: .8rem; justify-content: center; margin-top: 1.6rem; flex-wrap: wrap; }
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 2.5rem; }
.feature .ic { font-size: 1.6rem; }
.feature h3 { margin: .5rem 0 .3rem; font-size: 1.05rem; }
.feature p { color: var(--muted); font-size: .92rem; margin: 0; }
/* ===== Diff ===== */
.diff {
  white-space: pre-wrap;
  word-break: normal;
  overflow-wrap: break-word;
  overflow-wrap: anywhere;
  background: #0a0f24;
  padding: 1rem;
  border-radius: var(--radius-sm);
  overflow: auto;
  max-width: 100%;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .82rem;
  border: 1px solid var(--border);
  -webkit-overflow-scrolling: touch;
}
code {
  word-break: break-all;
}
.diff .add { color: var(--success); }
.diff .del { color: var(--danger); }
/* ===== Footer ===== */
footer.foot {
  max-width: 1040px;
  margin: 3rem auto 2rem;
  padding: 1.5rem 1.25rem 0;
  padding-left: max(1.25rem, env(safe-area-inset-left));
  padding-right: max(1.25rem, env(safe-area-inset-right));
  padding-bottom: max(2rem, env(safe-area-inset-bottom));
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: .85rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
/* ===== Responsive ===== */
@media (max-width: 900px) {
  .grid, .features { grid-template-columns: 1fr; }
  .monitor { flex-direction: column; gap: 1rem; }
  .monitor .actions {
    width: 100%;
    gap: .55rem;
    justify-content: flex-start;
  }
  .monitor .actions .btn { flex: 1 1 calc(50% - .3rem); justify-content: center; min-width: 0; }
}
@media (max-width: 992px) {
  .nav-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    gap: .75rem;
  }
  .nav-toggle { display: inline-flex; }
  header.nav {
    flex-direction: column;
    align-items: stretch;
    padding: .75rem 1rem;
    padding-top: max(.75rem, env(safe-area-inset-top));
    padding-left: max(1rem, env(safe-area-inset-left));
    padding-right: max(1rem, env(safe-area-inset-right));
  }
  header.nav nav.site-nav {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: .35rem;
    width: 100%;
    padding: .85rem 0 .35rem;
    border-top: 1px solid var(--border);
    margin-top: .5rem;
  }
  header.nav.nav-open nav.site-nav { display: flex; }
  header.nav nav.site-nav .nav-item,
  header.nav nav.site-nav a.nav-item {
    display: block;
    width: 100%;
    padding: .85rem .65rem;
    border-radius: var(--radius-sm);
  }
  header.nav nav.site-nav .nav-item:hover,
  header.nav nav.site-nav a.nav-item:hover { background: rgba(110,168,254,.08); }
  header.nav nav.site-nav .nav-logout { width: 100%; }
  header.nav nav.site-nav .nav-cta {
    justify-content: center;
    margin-top: .35rem;
    width: 100%;
  }
  header.nav.nav-open .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  header.nav.nav-open .nav-toggle-bar:nth-child(2) { opacity: 0; }
  header.nav.nav-open .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}
@media (max-width: 768px) {
  body { line-height: 1.65; }
  h1 { font-size: 1.55rem; }
  h2 { font-size: 1.2rem; margin: 0 0 .75rem; }
  p { margin: 0 0 1rem; }
  p.lead { font-size: 1rem; line-height: 1.65; }
  main { margin: 1.4rem auto; padding: 0 1rem; }
  .card { padding: 1.25rem 1.2rem; }
  .stack > * + * { margin-top: 1.15rem; }
  .field { margin-bottom: 1.15rem; }
  .hero { padding: 2rem 0 1.25rem; }
  .hero .cta { flex-direction: column; align-items: stretch; gap: 1rem; }
  .hero .cta .btn { justify-content: center; }
  .page-head { flex-direction: column; align-items: stretch; gap: 1rem; }
  .page-head .btn { width: 100%; justify-content: center; }
  .monitors { gap: 1.15rem; }
  .monitor { flex-direction: column; gap: 1.15rem; }
  .monitor .actions { width: 100%; gap: .65rem; }
  .monitor .actions .btn { flex: 1 1 calc(50% - .35rem); justify-content: center; min-width: 0; }
  .monitor .actions .delete-monitor-form { flex: 1 1 calc(50% - .35rem); }
  .monitor .actions .link.danger { width: 100%; }
  .flash { flex-wrap: wrap; font-size: .92rem; line-height: 1.5; gap: .5rem; }
  .flash .flash-actions { display: block; margin: .35rem 0 0; }
  footer.foot {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.25rem;
    line-height: 1.7;
  }
  .checks { flex-direction: column; gap: .75rem; align-items: flex-start; }
  .auth-shell { margin: 1rem auto; }
  .badge { padding: .35rem .75rem; }
}
@media (max-width: 480px) {
  .brand { font-size: .95rem; }
  .plan .price { font-size: 1.65rem; }
  .monitor .actions .btn { flex: 1 1 100%; }
  .monitor .actions .delete-monitor-form { flex: 1 1 100%; }
  .badge { font-size: .78rem; }
  .monitor .meta { gap: .5rem; }
}
/* ===== Comparison table ===== */
.compare-table { display: grid; gap: 0; margin-top: 1rem; }
.compare-row {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: .75rem;
  padding: .75rem 0;
  border-bottom: 1px solid var(--border);
  font-size: .92rem;
  align-items: start;
}
.compare-row.compare-head { font-weight: 700; color: var(--fg); }
.compare-row span:first-child { color: var(--muted); font-weight: 600; }
@media (max-width: 768px) {
  .compare-row { grid-template-columns: 1fr; gap: .25rem; }
  .compare-row span:nth-child(2)::before { content: "Diffspark: "; color: var(--accent); font-weight: 700; }
  .compare-row span:nth-child(3)::before { content: "Visualping: "; color: var(--muted); font-weight: 700; }
  .compare-row.compare-head { display: none; }
}
.monitor.paused { opacity: .72; }
.preview-box { margin-top: 1rem; max-height: 16rem; overflow: auto; font-size: .85rem; }
textarea { width: 100%; min-height: 4rem; padding: .65rem .8rem; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--surface-2); color: var(--fg); font-family: inherit; }